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/*
* Copyright © 2013 Lars Uebernickel
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Authors: Lars Uebernickel <lars@uebernic.de>
*/
#include "config.h"
#include "gnotification-private.h"
#include "gdbusutils.h"
#include "gicon.h"
#include "gaction.h"
#include "gioenumtypes.h"
/**
* SECTION:gnotification
* @short_description: User Notifications (pop up messages)
* @include: gio/gio.h
*
* #GNotification is a mechanism for creating a notification to be shown
* to the user -- typically as a pop-up notification presented by the
* desktop environment shell.
*
* The key difference between #GNotification and other similar APIs is
* that, if supported by the desktop environment, notifications sent
* with #GNotification will persist after the application has exited,
* and even across system reboots.
*
* Since the user may click on a notification while the application is
* not running, applications using #GNotification should be able to be
* started as a D-Bus service, using #GApplication.
*
* In order for #GNotification to work, the application must have installed
* a `.desktop` file. For example:
* |[
* [Desktop Entry]
* Name=Test Application
* Comment=Description of what Test Application does
* Exec=gnome-test-application
* Icon=org.gnome.TestApplication
* Terminal=false
* Type=Application
* Categories=GNOME;GTK;TestApplication Category;
* StartupNotify=true
* DBusActivatable=true
* X-GNOME-UsesNotifications=true
* ]|
*
* The `X-GNOME-UsesNotifications` key indicates to GNOME Control Center
* that this application uses notifications, so it can be listed in the
* Control Center’s ‘Notifications’ panel.
*
* The `.desktop` file must be named as `org.gnome.TestApplication.desktop`,
* where `org.gnome.TestApplication` is the ID passed to g_application_new().
*
* User interaction with a notification (either the default action, or
* buttons) must be associated with actions on the application (ie:
* "app." actions). It is not possible to route user interaction
* through the notification itself, because the object will not exist if
* the application is autostarted as a result of a notification being
* clicked.
*
* A notification can be sent with g_application_send_notification().
*
* Since: 2.40
**/
/**
* GNotification:
*
* This structure type is private and should only be accessed using the
* public APIs.
*
* Since: 2.40
**/
typedef GObjectClass GNotificationClass;
struct _GNotification
{
GObject parent;
gchar *title;
gchar *body;
GIcon *icon;
GNotificationPriority priority;
gchar *category;
GPtrArray *buttons;
gchar *default_action;
GVariant *default_action_target; /* (nullable) (owned), not floating */
};
typedef struct
{
gchar *label;
gchar *action_name;
GVariant *target;
} Button;
G_DEFINE_TYPE (GNotification, g_notification, G_TYPE_OBJECT)
static void
button_free (gpointer data)
{
Button *button = data;
g_free (button->label);
g_free (button->action_name);
if (button->target)
g_variant_unref (button->target);
g_slice_free (Button, button);
}
static void
g_notification_dispose (GObject *object)
{
GNotification *notification = G_NOTIFICATION (object);
g_clear_object (¬ification->icon);
G_OBJECT_CLASS (g_notification_parent_class)->dispose (object);
}
static void
g_notification_finalize (GObject *object)
{
GNotification *notification = G_NOTIFICATION (object);
g_free (notification->title);
g_free (notification->body);
g_free (notification->category);
g_free (notification->default_action);
if (notification->default_action_target)
g_variant_unref (notification->default_action_target);
g_ptr_array_free (notification->buttons, TRUE);
G_OBJECT_CLASS (g_notification_parent_class)->finalize (object);
}
static void
g_notification_class_init (GNotificationClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = g_notification_dispose;
object_class->finalize = g_notification_finalize;
}
static void
g_notification_init (GNotification *notification)
{
notification->buttons = g_ptr_array_new_full (2, button_free);
}
/**
* g_notification_new:
* @title: the title of the notification
*
* Creates a new #GNotification with @title as its title.
*
* After populating @notification with more details, it can be sent to
* the desktop shell with g_application_send_notification(). Changing
* any properties after this call will not have any effect until
* resending @notification.
*
* Returns: a new #GNotification instance
*
* Since: 2.40
*/
GNotification *
g_notification_new (const gchar *title)
{
GNotification *notification;
g_return_val_if_fail (title != NULL, NULL);
notification = g_object_new (G_TYPE_NOTIFICATION, NULL);
notification->title = g_strdup (title);
return notification;
}
/*< private >
* g_notification_get_title:
* @notification: a #GNotification
*
* Gets the title of @notification.
*
* Returns: the title of @notification
*
* Since: 2.40
*/
const gchar *
g_notification_get_title (GNotification *notification)
{
g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);
return notification->title;
}
/**
* g_notification_set_title:
* @notification: a #GNotification
* @title: the new title for @notification
*
* Sets the title of @notification to @title.
*
* Since: 2.40
*/
void
g_notification_set_title (GNotification *notification,
const gchar *title)
{
g_return_if_fail (G_IS_NOTIFICATION (notification));
g_return_if_fail (title != NULL);
g_free (notification->title);
notification->title = g_strdup (title);
}
/*< private >
* g_notification_get_body:
* @notification: a #GNotification
*
* Gets the current body of @notification.
*
* Returns: (nullable): the body of @notification
*
* Since: 2.40
*/
const gchar *
g_notification_get_body (GNotification *notification)
{
g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);
return notification->body;
}
/**
* g_notification_set_body:
* @notification: a #GNotification
* @body: (nullable): the new body for @notification, or %NULL
*
* Sets the body of @notification to @body.
*
* Since: 2.40
*/
void
g_notification_set_body (GNotification *notification,
const gchar *body)
{
g_return_if_fail (G_IS_NOTIFICATION (notification));
g_return_if_fail (body != NULL);
g_free (notification->body);
notification->body = g_strdup (body);
}
/*< private >
* g_notification_get_icon:
* @notification: a #GNotification
*
* Gets the icon currently set on @notification.
*
* Returns: (transfer none): the icon associated with @notification
*
* Since: 2.40
*/
GIcon *
g_notification_get_icon (GNotification *notification)
{
g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);
return notification->icon;
}
/**
* g_notification_set_icon:
* @notification: a #GNotification
* @icon: the icon to be shown in @notification, as a #GIcon
*
* Sets the icon of @notification to @icon.
*
* Since: 2.40
*/
void
g_notification_set_icon (GNotification *notification,
GIcon *icon)
{
g_return_if_fail (G_IS_NOTIFICATION (notification));
if (notification->icon)
g_object_unref (notification->icon);
notification->icon = g_object_ref (icon);
}
/*< private >
* g_notification_get_priority:
* @notification: a #GNotification
*
* Returns the priority of @notification
*
* Since: 2.42
*/
GNotificationPriority
g_notification_get_priority (GNotification *notification)
{
g_return_val_if_fail (G_IS_NOTIFICATION (notification), G_NOTIFICATION_PRIORITY_NORMAL);
return notification->priority;
}
/**
* g_notification_set_urgent:
* @notification: a #GNotification
* @urgent: %TRUE if @notification is urgent
*
* Deprecated in favor of g_notification_set_priority().
*
* Since: 2.40
* Deprecated: 2.42: Since 2.42, this has been deprecated in favour of
* g_notification_set_priority().
*/
void
g_notification_set_urgent (GNotification *notification,
gboolean urgent)
{
g_return_if_fail (G_IS_NOTIFICATION (notification));
notification->priority = urgent ?
G_NOTIFICATION_PRIORITY_URGENT :
G_NOTIFICATION_PRIORITY_NORMAL;
}
/*< private >
* g_notification_get_category:
* @notification: a #GNotification
*
* Gets the category of @notification.
*
* This will be %NULL if no category is set.
*
* Returns: (nullable): the category of @notification
*
* Since: 2.70
*/
const gchar *
g_notification_get_category (GNotification *notification)
{
g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);
return notification->category;
}
/**
* g_notification_set_category:
* @notification: a #GNotification
* @category: (nullable): the category for @notification, or %NULL for no category
*
* Sets the type of @notification to @category. Categories have a main
* type like `email`, `im` or `device` and can have a detail separated
* by a `.`, e.g. `im.received` or `email.arrived`. Setting the category
* helps the notification server to select proper feedback to the user.
*
* Standard categories are [listed in the specification](https://specifications.freedesktop.org/notification-spec/latest/ar01s06.html).
*
* Since: 2.70
*/
void
g_notification_set_category (GNotification *notification,
const gchar *category)
{
g_return_if_fail (G_IS_NOTIFICATION (notification));
g_return_if_fail (category == NULL || *category != '\0');
g_free (notification->category);
notification->category = g_strdup (category);
}
/**
* g_notification_set_priority:
* @notification: a #GNotification
* @priority: a #GNotificationPriority
*
* Sets the priority of @notification to @priority. See
* #GNotificationPriority for possible values.
*/
void
g_notification_set_priority (GNotification *notification,
GNotificationPriority priority)
{
g_return_if_fail (G_IS_NOTIFICATION (notification));
notification->priority = priority;
}
/**
* g_notification_add_button:
* @notification: a #GNotification
* @label: label of the button
* @detailed_action: a detailed action name
*
* Adds a button to @notification that activates the action in
* @detailed_action when clicked. That action must be an
* application-wide action (starting with "app."). If @detailed_action
* contains a target, the action will be activated with that target as
* its parameter.
*
* See g_action_parse_detailed_name() for a description of the format
* for @detailed_action.
*
* Since: 2.40
*/
void
g_notification_add_button (GNotification *notification,
const gchar *label,
const gchar *detailed_action)
{
gchar *action;
GVariant *target;
GError *error = NULL;
g_return_if_fail (detailed_action != NULL);
if (!g_action_parse_detailed_name (detailed_action, &action, &target, &error))
{
g_warning ("%s: %s", G_STRFUNC, error->message);
g_error_free (error);
return;
}
g_notification_add_button_with_target_value (notification, label, action, target);
g_free (action);
if (target)
g_variant_unref (target);
}
/**
* g_notification_add_button_with_target: (skip)
* @notification: a #GNotification
* @label: label of the button
* @action: an action name
* @target_format: (nullable): a #GVariant format string, or %NULL
* @...: positional parameters, as determined by @target_format
*
* Adds a button to @notification that activates @action when clicked.
* @action must be an application-wide action (it must start with "app.").
*
* If @target_format is given, it is used to collect remaining
* positional parameters into a #GVariant instance, similar to
* g_variant_new(). @action will be activated with that #GVariant as its
* parameter.
*
* Since: 2.40
*/
void
g_notification_add_button_with_target (GNotification *notification,
const gchar *label,
const gchar *action,
const gchar *target_format,
...)
{
va_list args;
GVariant *target = NULL;
if (target_format)
{
va_start (args, target_format);
target = g_variant_new_va (target_format, NULL, &args);
va_end (args);
}
g_notification_add_button_with_target_value (notification, label, action, target);
}
/**
* g_notification_add_button_with_target_value: (rename-to g_notification_add_button_with_target)
* @notification: a #GNotification
* @label: label of the button
* @action: an action name
* @target: (nullable): a #GVariant to use as @action's parameter, or %NULL
*
* Adds a button to @notification that activates @action when clicked.
* @action must be an application-wide action (it must start with "app.").
*
* If @target is non-%NULL, @action will be activated with @target as
* its parameter.
*
* Since: 2.40
*/
void
g_notification_add_button_with_target_value (GNotification *notification,
const gchar *label,
const gchar *action,
GVariant *target)
{
Button *button;
g_return_if_fail (G_IS_NOTIFICATION (notification));
g_return_if_fail (label != NULL);
g_return_if_fail (action != NULL && g_action_name_is_valid (action));
if (!g_str_has_prefix (action, "app."))
{
g_warning ("%s: action '%s' does not start with 'app.'."
"This is unlikely to work properly.", G_STRFUNC, action);
}
button = g_slice_new0 (Button);
button->label = g_strdup (label);
button->action_name = g_strdup (action);
if (target)
button->target = g_variant_ref_sink (target);
g_ptr_array_add (notification->buttons, button);
}
/*< private >
* g_notification_get_n_buttons:
* @notification: a #GNotification
*
* Returns: the amount of buttons added to @notification.
*/
guint
g_notification_get_n_buttons (GNotification *notification)
{
return notification->buttons->len;
}
/*< private >
* g_notification_get_button:
* @notification: a #GNotification
* @index: index of the button
* @label: (): return location for the button's label
* @action: (): return location for the button's associated action
* @target: (): return location for the target @action should be
* activated with
*
* Returns a description of a button that was added to @notification
* with g_notification_add_button().
*
* @index must be smaller than the value returned by
* g_notification_get_n_buttons().
*/
void
g_notification_get_button (GNotification *notification,
gint index,
gchar **label,
gchar **action,
GVariant **target)
{
Button *button;
button = g_ptr_array_index (notification->buttons, index);
if (label)
*label = g_strdup (button->label);
if (action)
*action = g_strdup (button->action_name);
if (target)
*target = button->target ? g_variant_ref (button->target) : NULL;
}
/*< private >
* g_notification_get_button_with_action:
* @notification: a #GNotification
* @action: an action name
*
* Returns the index of the button in @notification that is associated
* with @action, or -1 if no such button exists.
*/
gint
g_notification_get_button_with_action (GNotification *notification,
const gchar *action)
{
guint i;
for (i = 0; i < notification->buttons->len; i++)
{
Button *button;
button = g_ptr_array_index (notification->buttons, i);
if (g_str_equal (action, button->action_name))
return i;
}
return -1;
}
/*< private >
* g_notification_get_default_action:
* @notification: a #GNotification
* @action: (out) (optional) (nullable) (transfer full): return location for the
* default action, or %NULL if unset
* @target: (out) (optional) (nullable) (transfer full): return location for the
* target of the default action, or %NULL if unset
*
* Gets the action and target for the default action of @notification.
*
* If this function returns %TRUE, @action is guaranteed to be set to a non-%NULL
* value (if a pointer is passed to @action). @target may still return a %NULL
* value, as the default action may have no target.
*
* Returns: %TRUE if @notification has a default action
*/
gboolean
g_notification_get_default_action (GNotification *notification,
gchar **action,
GVariant **target)
{
if (notification->default_action == NULL)
return FALSE;
if (action)
*action = g_strdup (notification->default_action);
if (target)
{
if (notification->default_action_target)
*target = g_variant_ref (notification->default_action_target);
else
*target = NULL;
}
return TRUE;
}
/**
* g_notification_set_default_action:
* @notification: a #GNotification
* @detailed_action: a detailed action name
*
* Sets the default action of @notification to @detailed_action. This
* action is activated when the notification is clicked on.
*
* The action in @detailed_action must be an application-wide action (it
* must start with "app."). If @detailed_action contains a target, the
* given action will be activated with that target as its parameter.
* See g_action_parse_detailed_name() for a description of the format
* for @detailed_action.
*
* When no default action is set, the application that the notification
* was sent on is activated.
*
* Since: 2.40
*/
void
g_notification_set_default_action (GNotification *notification,
const gchar *detailed_action)
{
gchar *action;
GVariant *target;
GError *error = NULL;
if (!g_action_parse_detailed_name (detailed_action, &action, &target, &error))
{
g_warning ("%s: %s", G_STRFUNC, error->message);
g_error_free (error);
return;
}
g_notification_set_default_action_and_target_value (notification, action, target);
g_free (action);
if (target)
g_variant_unref (target);
}
/**
* g_notification_set_default_action_and_target: (skip)
* @notification: a #GNotification
* @action: an action name
* @target_format: (nullable): a #GVariant format string, or %NULL
* @...: positional parameters, as determined by @target_format
*
* Sets the default action of @notification to @action. This action is
* activated when the notification is clicked on. It must be an
* application-wide action (it must start with "app.").
*
* If @target_format is given, it is used to collect remaining
* positional parameters into a #GVariant instance, similar to
* g_variant_new(). @action will be activated with that #GVariant as its
* parameter.
*
* When no default action is set, the application that the notification
* was sent on is activated.
*
* Since: 2.40
*/
void
g_notification_set_default_action_and_target (GNotification *notification,
const gchar *action,
const gchar *target_format,
...)
{
va_list args;
GVariant *target = NULL;
if (target_format)
{
va_start (args, target_format);
target = g_variant_new_va (target_format, NULL, &args);
va_end (args);
}
g_notification_set_default_action_and_target_value (notification, action, target);
}
/**
* g_notification_set_default_action_and_target_value: (rename-to g_notification_set_default_action_and_target)
* @notification: a #GNotification
* @action: an action name
* @target: (nullable): a #GVariant to use as @action's parameter, or %NULL
*
* Sets the default action of @notification to @action. This action is
* activated when the notification is clicked on. It must be an
* application-wide action (start with "app.").
*
* If @target is non-%NULL, @action will be activated with @target as
* its parameter. If @target is floating, it will be consumed.
*
* When no default action is set, the application that the notification
* was sent on is activated.
*
* Since: 2.40
*/
void
g_notification_set_default_action_and_target_value (GNotification *notification,
const gchar *action,
GVariant *target)
{
g_return_if_fail (G_IS_NOTIFICATION (notification));
g_return_if_fail (action != NULL && g_action_name_is_valid (action));
if (!g_str_has_prefix (action, "app."))
{
g_warning ("%s: action '%s' does not start with 'app.'."
"This is unlikely to work properly.", G_STRFUNC, action);
}
g_free (notification->default_action);
g_clear_pointer (¬ification->default_action_target, g_variant_unref);
notification->default_action = g_strdup (action);
if (target)
notification->default_action_target = g_variant_ref_sink (target);
}
static GVariant *
g_notification_serialize_button (Button *button)
{
GVariantBuilder builder;
g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));
g_variant_builder_add (&builder, "{sv}", "label", g_variant_new_string (button->label));
g_variant_builder_add (&builder, "{sv}", "action", g_variant_new_string (button->action_name));
if (button->target)
g_variant_builder_add (&builder, "{sv}", "target", button->target);
return g_variant_builder_end (&builder);
}
static GVariant *
g_notification_get_priority_nick (GNotification *notification)
{
GEnumClass *enum_class;
GEnumValue *value;
GVariant *nick;
enum_class = g_type_class_ref (G_TYPE_NOTIFICATION_PRIORITY);
value = g_enum_get_value (enum_class, g_notification_get_priority (notification));
g_assert (value != NULL);
nick = g_variant_new_string (value->value_nick);
g_type_class_unref (enum_class);
return nick;
}
/*< private >
* g_notification_serialize:
*
* Serializes @notification into a floating variant of type a{sv}.
*
* Returns: the serialized @notification as a floating variant.
*/
GVariant *
g_notification_serialize (GNotification *notification)
{
GVariantBuilder builder;
g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));
if (notification->title)
g_variant_builder_add (&builder, "{sv}", "title", g_variant_new_string (notification->title));
if (notification->body)
g_variant_builder_add (&builder, "{sv}", "body", g_variant_new_string (notification->body));
if (notification->icon)
{
GVariant *serialized_icon;
if ((serialized_icon = g_icon_serialize (notification->icon)))
{
g_variant_builder_add (&builder, "{sv}", "icon", serialized_icon);
g_variant_unref (serialized_icon);
}
}
g_variant_builder_add (&builder, "{sv}", "priority", g_notification_get_priority_nick (notification));
if (notification->default_action)
{
g_variant_builder_add (&builder, "{sv}", "default-action",
g_variant_new_string (notification->default_action));
if (notification->default_action_target)
g_variant_builder_add (&builder, "{sv}", "default-action-target",
notification->default_action_target);
}
if (notification->buttons->len > 0)
{
GVariantBuilder actions_builder;
guint i;
g_variant_builder_init (&actions_builder, G_VARIANT_TYPE ("aa{sv}"));
for (i = 0; i < notification->buttons->len; i++)
{
Button *button = g_ptr_array_index (notification->buttons, i);
g_variant_builder_add (&actions_builder, "@a{sv}", g_notification_serialize_button (button));
}
g_variant_builder_add (&builder, "{sv}", "buttons", g_variant_builder_end (&actions_builder));
}
return g_variant_builder_end (&builder);
}
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